APA-ийн эшлэл(7 дахь хэвлэлт)

Olutiola, P. O. (2013). Man’s Unseen Allies and their Self-Synthesized Tools. Obafemi Awolowo University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Olutiola, P. O. Man’s Unseen Allies and Their Self-Synthesized Tools. Obafemi Awolowo University Press, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Olutiola, P. O. Man’s Unseen Allies and Their Self-Synthesized Tools. Obafemi Awolowo University Press, 2013.